They have three litter boxes... then why do they have to pee in a bag in the study? In a bag that isn't even mine??? And why don't I find out until they have peed in it at least three times....?
I better stop complaining and start cleaning.
I did learn on the internet that cleaning it with an enzyme containing laundry soap (like Biotex in Holland) is supposed to help. And then I'll spray with vinegar to make sure they won't come over there again..
Thank goodness it doesn't stink much. That would make it even worse.